20022443 has 8 divisors (see below), whose sum is σ = 23877888. Its totient is φ = 16415784.

The previous prime is 20022437. The next prime is 20022451. The reversal of 20022443 is 34422002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20022443 - 2⁴ = 20022427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62021 + ... + 62342.

It is an arithmetic number, because the mean of its divisors is an integer number (2984736).

Almost surely, 2^20022443 is an apocalyptic number.

20022443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20022443 is a deficient number, since it is larger than the sum of its proper divisors (3855445).

20022443 is a wasteful number, since it uses less digits than its factorization.

20022443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124393.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20022443 is about 4474.6444551495. The cubic root of 20022443 is about 271.5432564958.

Adding to 20022443 its reverse (34422002), we get a palindrome (54444445).

The spelling of 20022443 in words is "twenty million, twenty-two thousand, four hundred forty-three".